Abstract The aim of this study was to investigate the effects of radiofrequency radiation emitted from Wi-Fi systems and mobile phones on cord blood and placenta. The study included 149 pregnant women who were divided in subgroups: unexposed (control), mobile phone exposed, Wi-Fi exposed and mobile phone plus Wi-Fi exposed groups. Immediately after birth, placenta and cord blood samples were collected and protein carbonyl (PCO), malondialdehyde (MDA), total oxidant status (TOS), total antioxidant status, 8-hydroxy-2′-deoxyguanosine (8-OHdG) levels and DNA single strand breaks were analysed. The results of the study showed an increase in 8-OHdG, MDA, PCO and TOS in cord blood and placenta in the group exposed to mobile phones during gestation. However, the group exposed to Wi-Fi did not show alterations in the studied oxidative stress parameters. On the other hand, tail intensity and tail moment of DNA in the mobile phone exposure groups were higher than those in the control and Wi-Fi exposure groups. In conclusion, the results of this study indicated that mobile phone exposure during pregnancy could have an important potential to cause oxidative stress and DNA damage in cord blood and placenta. The results of this study also indicated that combined effects of Wi-Fi plus mobile phone exposure have a higher potential to cause synergistic harmful effects.

中文翻译：

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2.4 GHz Wi-Fi和手机暴露对人体胎盘和脐带血的影响比较

摘要 本研究的目的是调查 Wi-Fi 系统和手机发出的射频辐射对脐带血和胎盘的影响。该研究包括 149 名孕妇，他们被分为亚组：未暴露组（对照组）、手机暴露组、Wi-Fi 暴露组和手机加 Wi-Fi 暴露组。出生后立即收集胎盘和脐带血样本，检测羰基蛋白 (PCO)、丙二醛 (MDA)、总氧化状态 (TOS)、总抗氧化状态、8-羟基-2'-脱氧鸟苷 (8-OHdG) 水平和 DNA分析单链断裂。研究结果显示，在怀孕期间接触手机的组中，脐带血和胎盘中的 8-OHdG、MDA、PCO 和 TOS 增加。然而，暴露于 Wi-Fi 的组并未表现出研究的氧化应激参数发生变化。另一方面，手机暴露组DNA尾强度和尾矩均高于对照组和Wi-Fi暴露组。总之，这项研究的结果表明，怀孕期间接触手机可能会导致脐带血和胎盘中的氧化应激和 DNA 损伤。本研究的结果还表明，Wi-Fi 加手机暴露的综合效应更有可能产生协同有害影响。这项研究的结果表明，怀孕期间接触手机可能会导致脐带血和胎盘中的氧化应激和 DNA 损伤。本研究的结果还表明，Wi-Fi 加手机暴露的综合效应更有可能产生协同有害影响。这项研究的结果表明，怀孕期间接触手机可能会导致脐带血和胎盘中的氧化应激和 DNA 损伤。本研究的结果还表明，Wi-Fi 加手机暴露的综合效应更有可能产生协同有害影响。